Sprung vehicle seat

Abstract

Vehicle seat comprising a vehicle seat upper part and a vehicle seat lower part, the vehicle seat upper part being movable relative to the vehicle seat lower part, and the vehicle seat upper part being able to be sprung and damped, relative to the vehicle seat lower part, by a suspension and damping element, the suspension and damping element comprising a reversibly deformable plastics element and an adjusting element, the plastics element and the adjusting element being in operative contact, and the spring characteristics of the suspension and damping element being able to be adjusted depending on the position of the adjusting element relative to the plastics element.

What is claimed is: 
     
       1. A vehicle seat comprising a vehicle seat upper part and a vehicle seat lower part, the vehicle seat upper part being movable relative to the vehicle seat lower part, and the vehicle seat upper part being sprung and damped, relative to the vehicle seat lower part, by a suspension and damping element,
 wherein 
 the suspension and damping element comprises a reversibly deformable plastics element and an adjusting element, the plastics element and the adjusting element being in operative contact, and the spring characteristics of the suspension and damping element being able to be adjusted depending on the position of the adjusting element relative to the plastics element. 
 
     
     
       2. The vehicle seat according to  claim 1 , wherein the adjusting element has a rotational axis that extends in a vehicle seat width direction or a rotational axis that extends in a vehicle seat length direction, the adjusting element being mounted so as to be rotatable about said rotational axis, and has at least three different functional regions, a first functional region being rectangular, a second functional region comprising first elevations and first depressions that are arranged perpendicularly to the vehicle seat width direction, and a third functional region comprising second elevations and second depressions that are arranged perpendicularly to the vehicle seat width direction or perpendicularly to the vehicle seat length direction. 
     
     
       3. The vehicle seat according to  claim 1 , wherein the adjusting element has a rotational axis that extends in a vehicle seat width direction or a rotational axis that extends in a vehicle seat length direction, the adjusting element being mounted so as to be rotatable about said rotational axis, the adjusting element being formed as a shaft comprising third elevations and third depressions, a depression following an elevation in each case, and an elevation following each depression, viewed in the vehicle seat width direction or in the vehicle seat length direction, the elevations tapering eccentrically in cross section when viewed in the vehicle seat width direction or in the vehicle seat length direction. 
     
     
       4. The vehicle seat according to  claim 1 , wherein the adjusting element can be moved in a vehicle seat length direction and is substantially cuboid, the adjusting element having first regions, the extent of which, in a vehicle seat height direction, continuously increases to the front or to the rear, viewed in the vehicle seat length direction, in order to form fourth depressions, and second regions which form fourth elevations, viewed in the vehicle seat height direction. 
     
     
       5. The vehicle seat according to  claim 1 , wherein the plastics element is substantially cuboid, and comprises at least one recess which is preferably formed as a through-opening in the vehicle seat length direction or in the vehicle seat width direction. 
     
     
       6. The vehicle seat according to  claim 1 , wherein the adjusting element can be actuated by actuating an adjusting element. 
     
     
       7. The vehicle seat according to  claim 2 , wherein the elevations of the adjusting element are arranged above recesses of the plastics element when viewed in the vehicle seat height direction. 
     
     
       8. The vehicle seat according to  claim 1 , wherein the plastics element can be deformed by the adjusting element when the vehicle seat upper part moves relative to the vehicle seat lower part, which deformation can cause damping of the movement of the vehicle seat upper part. 
     
     
       9. The vehicle seat according to  claim 1 , wherein the vehicle seat upper part and the vehicle seat lower part are interconnected by means of a scissor-action frame, or the vehicle seat upper part has a first and at least one second swivel axis, and the vehicle seat lower part has a third and a fourth swivel axis, the first and third swivel axes being interconnected by means of at least one first connecting link, and the second and fourth swivel axes being interconnected by means of at least one second connecting link. 
     
     
       10. The vehicle seat according to  claim 1 , wherein the plastics element consists of Cellasto and/or Vulkollan at least in part. 
     
     
       11. The vehicle seat according to  claim 1 , wherein the adjusting element is connected to the vehicle seat upper part and the plastics element is connected to the vehicle seat lower part, or the adjusting element is connected to the vehicle seat lower part and the plastics element is connected to the vehicle seat upper part. 
     
     
       12. The vehicle seat according to  claim 1 , wherein the adjusting element is formed of a plastics material or a metal.